When throwing the spout a few reminders and caveats:
- A larger base or funnel will power the liquid through the spout.
- The spout opening should funnel down to about the size of your little finger.
- There should be a straight section of spout to even out the turbulence of the flow.
- The end flair of the spout should not be very extreme.
- It protects the base of the spout from warping when being removed from the wheel
- It keeps the base of the spout from drying out too much while the spout dries making it easier to join to the teapot body.
Removing the lid by using a wooden rib, or a butter knife in this manner takes a little bit of practice, but is well worth the effort as it can save you a lot of time when throwing several lids or chalice/goblet cups etc off of the hump.
I take a bit of time forming the body of the pot as the extra lines and edges create interest in the breaking glaze. I do not like too narrow of a base on teapots as they can get tippy.